Mine says "preparing for shipment." I ordered a 6 plus 64gb Verizon model using the Apple store app at about 12:40am PDT on launch day (I am up then anyway). The order says deliver by 9/19. But I had to use the app to see changed status - the text alerts are not happening for me. The only thing that worked to buy from Apple that night was the Apple app and not a browser, as I had two laptops and an iPad using two different ISP's. I think Apple put quotas on certain geographical areas (determined by IP addresses) to spread out sales. I also think their area of purchase allocations was what messed up that night. I also suspect that Asian countries got more 6 plus allocations - as Apple wanted to snatch that market from Samsung and friends.
My experience with my last 4 pre-orders is that (for me) they have always shipped from China (iPhone 5 and S, iPad Air, and iPad mini Retina). When you track them they seem like they won't arrive on time, but they always do. I think Apple has the carriers hold onto them to deliver on the 9/19 launch day. My fedEx driver told me that they had standing orders to hold on to any Apple shipment if they got one to deliver early. I think the devices are coded with carrier tracking to control delivery. I have heard of some arriving a day or two early anyway, but I expect that won't happen this time. Supposedly Apple has "taken over" all the air cargo out of China for a while. Hopefully their mistakes on pre-order day will be offset by competent logistics.